
27
OWNER’S MANUAL
APM /
3. TOTAL MUSIC DISTORTION
Sections:
1. User Data:
replicates the main fields with the related information.
2. Real time monitor:
it displays the SPL meter, status and STOP.
3. Points scoring system:
it shows the weighing table of the individual APM items that contribute to the MSQR
scoring
system.
The software separately calculates the overall scores for the TMD and FSA analyses by applying a logarithmic
scale to the weighted average of the individual partial indexes. The APM total score is calculated as the average
of the overall scores for the TMD and FSA analyses.
The score scale can assume values in the interval between 70 (minimum score) and 120 (maximum score).
1
6
3
4
5
2
6